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Evaluation of Prototype Head Shield for Hazardous Material Tank Car

The structural integrity of a prototype tank car head shield for hazardous material railroad tank cars was evaluated under conditions of freight car coupling at moderate to high speeds. This is one of the most severe environments encountered in normal railroad service. Two versions of the shield...

Energy and Environmental Factors in Railroad Electrification

[From the Introduction] Railroad electrification recently has received attention from both industry and government. For the railroads, any decision to electrify trackage will depend on economic considerations. National interest in other critical areas, however, may give additional impetus to...

DYNALIST II - a Computer Program for Stability and Dynamic Response Analysis of Rail Vehicle Systems : Volume I : Technical Report

A methodology and a computer program, DYNALIST II, have been developed for computing the response of rail vehicle systems to sinusoidal or stationary random rail irregularities. The computer program represents an extension of the earlier DYNALIST program. A modal synthesis procedure is used which...

Conceptual Design and Analysis of the Tracked Magnetically Levitated Vehicle Technology Program (TMLV). Repulsion Scheme. Executive Summary

This report is an Executive Summary of FRA report 0R&D-75-21 which summarizes studies to establish the technology of repulsion magnetic suspension for ultimate use in a passenger carrying high speed ground transportation (HSGT) system - at speeds on the order of 134m/s (300 mph). A baseline...

Comparison of Two HSGT Magnetic Suspension Systems (Attraction)

Two alternate attraction magnetic suspension systems are compared on a magnetic performance basis as well as on their lift-to-weight (l/w) capabilities. On an equal current basis, the lower reluctance, flat track configuration has higher lift force and better l/w than the U shaped track...

A Review of Measurement Techniques, Requirements, and Available Data on the Dynamic Compliance of Railroad Track

The need for increasing train speeds and operating safety while reducing track maintenance is responsible for much of the current research on track structures, vehicle dynamics, and vehicle/track interaction. This report covers Phase I of a 3-phase program to design and fabricate equipment for...

12th Annual Railroad Conference Proceedings, "Effect of Heavy Axle Loads on Track"

Proceedings of the 1975 Railroad Engineering Conference held at Pueblo, Colorado, October 23 and 24, 1975. Sessions included track developments, suspension developments and track/train interaction. Eighteen papers were presented by authors from the United States, Canada, Mexico and Europe.

The Impact of the U.S. Energy Situation on High Speed Ground Transportation

U. S. energy supply issues for the next few decades are summarized with a view toward their impact on high speed ground transportation (HSGT) modes. As background, the energy characteristics of intercity passenger modes, including 300 mph tracked levitated vehicle (TLV) systems, are presented...

Review of Proposed Specifications Relating to the Shipment of Ethylene in Tank Cars at Cryogenic Temperatures

This report reviews proposed specifications and shipper regulations for 113 series tank cars for transporting liquid ethylene at cryogenic temperatures. The study was limited in scope and was to be directed primarily at the holding time requirements necessary for safe shipment of the commodity....

Railroad Research Bulletin Autumn 1973: Volume I, Number 2

This publication contains 1,647 abstracts of journal articles and research reports selected by RRIS from current railroad literature and 160 summaries of ongoing research activities in the railroad field. The material covers the entire range of railroading from technology to operations,...

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